We won’t discuss how “CA” works but the site illustrates how in green and red two Secondary Cells, and the Primary cell is located in blue.ĪS shown in the measResults, a value called measId, for example 7, is reported by the UE. The organization shows the following image: These are frequencies used for Carrier Aggregation (“CA”) function. PCell is a Primary Cell and SCell are secondary cells, which are used for “Carrier Aggregation” function. } What is PCell and Scell values reported by the UE? The SCell-r10, includes values for a servFreqId-r10 with value 1 and servFrequId-r10 with value 2, and he measurement Result, or measResultSCell-r10 for both frequencies, which are provided by the UE as rsrpResultSCell-10 and rsrqResultScell-r10. measResultNeighCells measResultListEUTRA : The measurement Reports in 4G LTE contains the values of the SCell or the “Secondary Cell” as well as the “Neighbor Cells” as part of “measResultNeighCells” structure, again with RSRP and RSRQ Values. The measResults, contains the PCell or the “Primary Cell,” and depicted st “ measResultPCell” as well as the following parameters contain the RSRP and RSRQ result of that measurement. The first para of he measurement report will contain an Id that matches, a measConfig message that will be discussed later. MeasResultNeighCells measResultListEUTRA : Interpreted PDU: value UL-DCCH-Message ::=ĬriticalExtensions c1 : measurementReport-r8 : The payload of a a measurement report will contain: These conditions as reported as Measurement Reports assist the eNodeB in making handover decisions.Ī Measurement Reports in 4G LTE are found as part of a UL_DCCH message sent from the UE to the eNodeB that is connected to, in a QXDM Log file, or DIAG protocol should return a value: UL_DCCH / MeasurementReport Radio Bearer ID: 1, Freq: 5230, SFN: 0
![qxdm log qxdm log](https://i.ytimg.com/vi/JNcWxJPuCqY/maxresdefault.jpg)
![qxdm log qxdm log](https://forumschinese.quectel.com/uploads/default/original/1X/d05f200d9b1479c633848c0559854d79b47e2d4c.png)
Measurement Reports in 4G LTE are a way for a UE (“User Equipment”) or the mobile terminal to keep track of different signal strength measurements and report to the eNodeB if certain conditions are met.